Hurco VM Series User guide

February 2012 704-0212-209 Revision B
MAINTENANCE AND SAFETY
MANUAL
for VM Series
Machining Centers

ii - Maintenance and Safety Manual 704-0212-209 VM Series Maintenance and Safety Manual
The information in this document is subject to change without notice and does not
represent a commitment on the part of Hurco Companies, Inc. (Hurco). The software
described in this document is furnished under the License Agreement to customers. It is
against the law to copy the software on any medium except as specifically allowed in the
license agreement. The purchaser may make copies of the software for backup purposes.
No part of this document may be reproduced or transmitted in any form or by any means,
electronic or mechanical, including photocopying, for any purpose without the express
written permission of the Hurco machine tool owner.
Hurco Manufacturing Company reserves the right to incorporate any modification or
improvements in machines and machine specifications which it considers necessary, and
does not assume any obligation to make any said changes in machines or equipment
previously sold.
Hurco products and services are subject to Hurco’s then current prices, terms, and
conditions, which are subject to change without notice.
© 2012 Hurco Companies, Inc. All rights reserved.
Patents: U.S. Patents B14,477,754; 5,453,933; Canadian Patent 1,102,434;
Japanese Patents 1,649,006 and 1,375,124; other Patents pending.
Hurco, Max, Ultimax, and WinMax are Registered Trademarks of Hurco Companies, Inc.
AutoCAD, Autodesk, and DXF are registered trademarks of Autodesk, Inc.
MS-DOS, Microsoft, and Windows are registered trademarks of Microsoft Corporation.
Many of the designations used by manufacturers and sellers to distinguish their products
are claimed as trademarks. Hurco has listed here all trademarks of which it is aware. For
more information about Hurco products and services, contact:
Hurco Companies, Inc.
One Technology Way
P.O. Box 68180
Indianapolis, IN 46268-0180
Tel [phone] (products)
[phone] (service)
Fax [phone] (service)
For Hurco subsidiary contact information, go to Hurco’s Web site:
www.hurco.com

VM Series Maintenance and Safety Manual 704-0212-209 VM Maintenance Checklist — iii
VM MAINTENANCE CHECKLIST
Daily (Every 8 - 10 Hours)
Perform operational checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2
Check the USB port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
Check and maintain all lubricant levels. . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
Clean the tool lock pins and tool gripper fingers. . . . . . . . . . . . . . . . . . . . 3- 10
Check the condition of tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 11
Lubricate the non-motorized spindle taper. . . . . . . . . . . . . . . . . . . . . . . . 3- 13
Maintain the spindle chiller system (if equipped). . . . . . . . . . . . . . . . . . . . 3- 14
Check the spindle chiller (if equipped) working environment, ventilation, and
ambient temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 16
Check the FRL unit air pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 22
Check the auto moisture drain on FRL. . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 23
Check the coolant level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 25
Clean the chip conveyor tank (if equipped) chip screens. . . . . . . . . . . . . . 3- 27
Inspect the enclosure windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 29
Check the trunnion table (if equipped) clamping system’s incoming
pneumatic lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 30
Clean the trunnion table (if equipped). . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 31
Check the rotary-axis oil level (if equipped). . . . . . . . . . . . . . . . . . . . . . . 3- 31
Check the tilt-axis oil (if equipped). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 32
Warm up the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 33
Weekly (Every 40 - 50 Hours)
Clean the filter inside the heat exchanger. . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
Check each tool holder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 12
Inspect the chiller solution level (if equipped). . . . . . . . . . . . . . . . . . . . . . 3- 13
Inspect the spindle chiller tank air filter and water filter (if equipped). . . . . 3- 14
Clean the coolant filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 25
Check the CTS coolant filter (if equipped). . . . . . . . . . . . . . . . . . . . . . . . . 3- 26
Check the oil level for the clamping system (if equipped). . . . . . . . . . . . . . 3- 30
Monthly (Every 150-200 Hours)
Inspect conduit, connectors, cabling, and external wiring. . . . . . . . . . . . . . 3 - 4
Add a rust preventative to the Autolube system. . . . . . . . . . . . . . . . . . . . 3 - 7
Maintain the autolube fluid level and check the filler filter screen. . . . . . . . 3 - 7
Manually activate the Autolube system. . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 8
Inspect limit switches and dog fasteners for damage. . . . . . . . . . . . . . . . . 3- 28
Perform a spindle run-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 36
Do not attempt to access the machine enclosure while machine
power is on. Observe proper lock-out/tag-out procedures before
performing any maintenance inside the machine enclosure.

iv - VM Maintenance Checklist 704-0212-209 VM Series Maintenance and Safety Manual
Every 3 Months (Every 500 Hours or as stated)
Check the ATC oil level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 9
Drain moisture from the lines of the FRL. . . . . . . . . . . . . . . . . . . . . . . . . . 3- 23
Replace coolant and coolant filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 25
Replace the CTS coolant filter (if equipped). . . . . . . . . . . . . . . . . . . . . . . . 3- 26
Clean the chip conveyor tank (if equipped). . . . . . . . . . . . . . . . . . . . . . . . 3- 27
Measure the ground impedance (resistance to true earth). . . . . . . . . . . . . . 3- 29
Every 6 Months (Every 1000 Hours or as stated)
Grease the ATC magazine chain assembly . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 9
Verify the machine is sitting level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 29
Annually (Every 2000 Hours or as stated)
Clean the autolube reservoir tank and suction filter. . . . . . . . . . . . . . . . . . . 3 - 8
Replace the ATC oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 9
Flush, clean, and refill the spindle chiller tank (if equipped).. . . . . . . . . . . . . 3- 15
Replace the rotary-axis oil (if equipped). . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 31
Replace the tilt-axis oil (if equipped). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 32

VM Series Maintenance and Safety Manual 704-0212-209 Table of Contents — v
TABLE OF CONTENTS
Maintenance and Safety Manual for Your VM Machining Center
VM Maintenance Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Machine Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2
Machine Model Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 6
Spindle and Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 7
Axes Motion System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 12
Machine Electrical Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 15
Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 28
Operator Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 28
Coolant System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 32
Pneumatic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 33
VM10G Dust Collector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 33
Trunnion Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 34
Automatic Tool Changer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 35
Operation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
Machine Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2
Initial Test and Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5
Machinery Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 6
Proper Operation and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 10
Noise Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 13
Machine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1
Daily Operational Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
Exterior Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
Pneumatic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 22
Flood Coolant and Washdown System . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 24
Chip Conveyor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 27
Dust Collector—VM10G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 28
Limit Switches and Dogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 28
Machine Electrical Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 29
Machine Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 29
Enclosure Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 29
Trunnion Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 30
Machine Warm-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 33
Spindle Run-in or Cycle Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 36
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 39
Ordering Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 46
Record of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

vi - List of Figures 704-0212-209 VM Series Maintenance and Safety Manual
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IX - 1
LIST OF FIGURES
Figure 1–1. Full Chip and Coolant Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 6
Figure 1–2. Example of Belt-Driven Spindle and Drive . . . . . . . . . . . . . . . . . . . 1 - 7
Figure 1–3. Mini-ITX Card Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 16
Figure 1–4. Slice I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 20
Figure 1–5. Communication Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 21
Figure 1–6. Communication Port Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 25
Figure 1–7. Male 9-Pin D-Type Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 26
Figure 1–8. Dual-Screen Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 28
Figure 1–9. Max Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 29
Figure 3–1. Autolube Pump and Tank Assembly . . . . . . . . . . . . . . . . . . . . . . 3 - 6
Figure 3–2. HWK Spindle Chiller Control Panel . . . . . . . . . . . . . . . . . . . . . . . . 3- 18
Figure 3–3. HWT Spindle Chiller Control Panel . . . . . . . . . . . . . . . . . . . . . . . . 3- 20
Figure 3–4. Filter, Regulator, and Lubricator Unit . . . . . . . . . . . . . . . . . . . . . . 3- 22
LIST OF TABLES
Table 1–12. Axis Maximum Travel, English . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 12
Table 1–13. Rapid Traverse Rates, Metric . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 13
Table 1–14. Rapid Traverse Rates, English . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 13
Table 1–15. Communication Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 25
Table 1–16. RS-232C Signals Available at Serial Port . . . . . . . . . . . . . . . . . . . . 1- 26
Table 1–17. Trunnion Table Maximum Allowable Workpiece Weight, Metric . . . . 1- 34
Table 1–18. Trunnion Table Maximum Allowable Workpiece Weight, English . . . . 1- 34
Table 1–19. ATC Tool Specifications, Metric . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 35
Table 1–20. ATC Tool Specifications, English . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 35
Table 2–1. Maximum Noise Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 13
Table 3–1. Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
Table 3–2. Differential Temperature Cooling process . . . . . . . . . . . . . . . . . . . 3- 17
Table 3–3. 6000 Max RPM Spindle Warm-up . . . . . . . . . . . . . . . . . . . . . . . . . 3- 33
Table 3–4. 8000 Max RPM Spindle Warm-up . . . . . . . . . . . . . . . . . . . . . . . . . 3- 33
Table 3–5. 10000 Max RPM Spindle Warm-up . . . . . . . . . . . . . . . . . . . . . . . . 3- 33
Table 3–6. 12000 Max RPM Spindle Warm-up . . . . . . . . . . . . . . . . . . . . . . . . 3- 34
Table 3–7. 15000 Max RPM Spindle Warm-up . . . . . . . . . . . . . . . . . . . . . . . . 3- 34
Table 3–8. 18000 Max RPM Spindle Warm-up . . . . . . . . . . . . . . . . . . . . . . . . 3- 34
Table 3–9. 20000 Max RPM Spindle Warm-up . . . . . . . . . . . . . . . . . . . . . . . . 3- 35
Table 3–10. 30000 Max RPM Spindle Warm-up . . . . . . . . . . . . . . . . . . . . . . . . 3- 35
Table 3–11. 600 Max RPM Spindle Run-in or Cycle . . . . . . . . . . . . . . . . . . . . . 3- 36
Table 3–12. 8000 Max RPM Spindle Run-in or Cycle . . . . . . . . . . . . . . . . . . . . . 3- 36
Table 3–13. 10000 Max RPM Spindle Run-in or Cycle . . . . . . . . . . . . . . . . . . . . 3- 37
Table 3–14. 12000 Max RPM Spindle Run-in or Cycle . . . . . . . . . . . . . . . . . . . . 3- 37
Table 3–15. 15000 Max RPM Spindle Run-in or Cycle . . . . . . . . . . . . . . . . . . . . 3- 37
Table 3–16. 18000 Max RPM Spindle Run-in or Cycle . . . . . . . . . . . . . . . . . . . . 3- 38
Table 3–17. 20000 Max RPM Spindle Run-in or Cycle . . . . . . . . . . . . . . . . . . . . 3- 38

VM Series Maintenance and Safety Manual 704-0212-209 List of Tables - vii
Table 3–18. 30000 Max RPM Spindle Run-in or Cycle . . . . . . . . . . . . . . . . . . . . 3- 38
Table 3–19. Troubleshooting: Missing or Faulty Connections . . . . . . . . . . . . . . . 3- 42
Table 3–20. Troubleshooting: Power Fluctuation . . . . . . . . . . . . . . . . . . . . . . . 3- 42
Table 3–21. Troubleshooting: Coolant System . . . . . . . . . . . . . . . . . . . . . . . . 3- 43
Table 3–22. Troubleshooting: Spindle Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 43
Table 3–23. Troubleshooting: Power Off Motion Error . . . . . . . . . . . . . . . . . . . 3- 44
Table 3–24. Troubleshooting: Machine Chatter . . . . . . . . . . . . . . . . . . . . . . . . 3- 44
Table 3–25. Troubleshooting: Errors in Dimensions . . . . . . . . . . . . . . . . . . . . . 3- 45
Table 3–26. Troubleshooting: Environmental Factors . . . . . . . . . . . . . . . . . . . 3- 45

viii - List of Tables 704-0212-209 VM Series Maintenance and Safety Manual

VM Series Maintenance and Safety Manual 704-0212-209 Documentation Conventions — ix
DOCUMENTATION CONVENTIONS
This documentation uses several conventions to explain the safety features and
emphasize key concepts. These conventions are described in this section.
Additional information is available on the machine’s Documentation CD.
Console Buttons and Keys
References to console buttons and keys appear in bold text throughout the
documentation. For example, the Start Cycle button appears as the Start Cycle button
and the Manual key appears as the Manual console key in text.
Refer to the Getting Started with WinMax manual for information about console buttons
and keys, in addition to other information about using softkeys and the pop-up text entry
window.
Icons
This manual may contain the following icons:
Caution/Warning
The operator may be injured and the machine severely damaged if the
described procedure is not followed.
Softkeys
Status Bar
Error/Status area
Prompts
WinMax Version
Current Machine
Type (Desktop)

x - Documentation Conventions 704-0212-209 VM Series Maintenance and Safety Manual
Important
Troubleshooting
Hints and Tricks
Where can we go from here?
Table of Contents
Ensures proper operation of the machine and control.
?Steps that can be taken to solve potential problems.
Useful suggestions that show creative uses of the WinMax features.
Lists several possible options the operator can take.
To assist with onscreen PDF viewing, this icon is located on the cover page.
Click the icon to access the Table of Contents (TOC).
You can also access many of the same TOC entries from the Adobe Reader
bookmarks located on the left side of the PDF page.

VM Series Maintenance and Safety Manual 704-0212-209 Machine Components 1- 1
MACHINE COMPONENTS
The following topics are covered in this section:
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2
Machine Model Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 6
Spindle and Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 7
Axes Motion System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 12
Machine Electrical Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 15
Control Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 28
Operator Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 28
Coolant System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 32
Pneumatic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 33
VM10G Dust Collector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 33
Trunnion Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 34
Automatic Tool Changer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 35

1 - 2 Machine Components 704-0212-209 VM Series Maintenance and Safety Manual
Overview
Before using the machine, you should become familiar with its components. Because of
European Committee (CE) requirements, Hurco machines sold in Europe may differ from
those sold elsewhere. The location of some components may differ on different models.
Hurco machines are available with several hardware and software options.
Hurco machines use microprocessor-based, computer numerical control (CNC) digital
control systems. Part programs are entered in either Conversational or Conventional NC
(G-Code) format.
The machining centers described in this manual have a vertical spindle with
programmable spindle speeds, multiple axes, and a multi-tool Automatic Tool Changer
(ATC). Options are available to accommodate various machining applications.
Closed loop servo drive systems and motors with rotary encoders power the mechanical
drives that position the axes. The rotary encoders provide positioning feedback
information to the control. Limit switches mounted on each axis determine end-of-travel
and establish reference points for initial machine zeros.
The control positions an axis by sending a command to the appropriate servo drive,
which in turn supplies voltage to the axis servomotor.
Refer to the Parts Listing and Wiring Diagrams Manual for mechanical and electrical
component drawings for your machine.
Information about options is available from Hurco or your Hurco
full-service distributor.
Specification measurements are supplied in metric and English.
Machine linear positioning accuracy was set at the factory, in an
ambient temperature of 68º F (20º C). Continual operation at
higher or lower temperatures may require that you re-
compensate the linear positioning accuracy.
Optimum machine performance is reliant upon installation
conditions being within Hurco’s recommended specifications
(power supply, air supply, ambient air conditions, etc.).

VM Series Maintenance and Safety Manual 704-0212-209 Machine Components 1- 3
Machine Model Names
The information in this manual applies to VM5, VM10 series (VM10, VM10G, VM10P, and
VM10U), VM20, and VM30 machining centers.
Frame
The major structural assemblies of each machine are constructed of thick-walled, fine-
grain cast iron. This construction provides strength and excellent dampening
characteristics, keeping deflection and resistance at a minimum during machining.
Table
The machine table provides easy setup for a variety of part sizes.
T-slot Specifications
T-slot specifications appear in these tables in metric and English measurements.
Table 1–1. VM Machine Table T-slot Specifications, Metric
Table 1–2. VM Machine Table T-slot Specifications, English
Machine T-slots
Width T-slots Spacing on centers Number of T-slots
VM5 18 mm 100 mm 3
VM10 18 mm 100 mm 3
VM10G 18 mm 100 mm 3
VM10P 18 mm 100 mm 3
VM10U 10 mm x 60°radial locations NA 6
VM20 18 mm 100 mm 5
VM30 18 mm 100 mm 5
Machine T-slots
Width T-slots Spacing on centers Number of T-slots
VM5 0.71 in 3.94 in 3
VM10 0.71 in 3.94 in 3
VM10G 0.71 in 3.94 in 3
VM10P 0.71 in 3.94 in 3
VM10U 0.39 in x 60° radial locations NA 6
VM20 0.71 in 3.94 in 5
VM30 0.71 in 3.94 in 5

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Machine Table Specifications
The following tables list additional table specifications, in metric and English.
Table 1–3. VM Machine Table Specifications, Metric
Table 1–4. VM Machine Table Specifications, English
Head
The cast iron head assembly is designed to produce superior cutting accuracy. Each
machine has a vertical spindle and uses a motor brake for the Z axis.
Guideways
The axes guideways are precision linear rails.
Table 1–5. VMX Machine Guideways
Machine Floor to Table
Surface Working Surface Load Capacity
VM5 825 mm 457 mm x 356 mm 227 kg
VM10 851 mm 762 mm x 406 mm 340 kg
VM10G 851 mm 762 mm x 356 mm 340 kg
VM10P 851 mm 762 mm x 406 mm 340 kg
VM10U
largest part size 1076 mm 198 mm Diameter 320 mm Diameter x 254 mm 150 kg
VM20 910 mm 1168 mm x 508 mm 544 kg
VM30 910 mm 1321 mm x 508 mm 544 kg
Machine Floor to Table
Surface Working Surface Load Capacity
VM5 32.5 in 18 in x 14 in 500 lb
VM10 33.5 in 30 in x 16 in 750 lbs
VM10G 33.5 in 30 in x 14 in 750 lbs
VM10P 33.5 in 30 in x 16 in 750 lbs
VM10U
largest part size 42.4 in 7.8 in Diameter 12.6 in Diameter x 10 in 330 lbs
VM20 35.8 in 46 in x 20 in 1200 lbs
VM30 35.8 in 52 in x 20 in 1200 lbs
Machine Axis Way Type
VM5 X, Y and Z
(oil lubrication) Linear, size 25 standard block
VM10
VM10G
VM10P
VM10U
X and Y
Z
(oil lubrication)
Linear, size 30 standard block
Linear, size 35 standard block
VM20
VM30 X and Y
Z
(oil lubrication)
Linear, size 35 standard block
Linear, size 45 standard block

VM Series Maintenance and Safety Manual 704-0212-209 Machine Components 1- 5
Switches and Sensors
Limit switches, proximity switches, and electrical sensors monitor machine functions.
These devices report their status to the control. If a malfunction is detected, a stop
condition will shut off power to the servo systems and spindle.

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Enclosure
A full chip enclosure is standard in every Hurco center.
Figure 1–1. Full Chip and Coolant Enclosure
Standard features may include a flood coolant system with chip pan. An optional chip
conveyor may be installed. An optional chip auger may be available for installation on
some models. The VM10G is fully enclosed, and requires the use of a dust vacuum
system.
Consult Hurco or your Hurco distributor for details about purchasing options.

VM Series Maintenance and Safety Manual 704-0212-209 Machine Components 1- 7
Spindle and Drive System
Hurco machines have a cartridge-type spindle. This spindle is precision-balanced, and
made of high-grade alloy steel. The spindle shaft (inside the cartridge) is supported by
ABEC-7 class angular contact bearings. The bearings are grease packed.
Belt-Driven Spindle
The spindle and drive system consists of a spindle, motor with encoder, pulley
arrangement, and drive unit. Different size spindles, motors, and pulleys give each
machine its unique cutting power specification.
The following figure illustrates vertical spindle and drive components.
Figure 1–2. Example of Belt-Driven Spindle and Drive
Heavy disc springs retain the tool holder in the spindle by clamping the tool holder pull
stud via a drawbar. Pneumatics release the tool holder during a tool change. A dual-piston
air cylinder supplies the necessary thrust force to the drawbar for tool release.
1Spindle Motor
2Air/Oil Unit
3Tool Release Cylinder
4Drawbar
5Spindle Pulley
6Spindle Belt
7Spindle Assembly
8Spindle Tool Holder
9Motor Pulley

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Spindle Specifications
The following tables list additional machine spindle specifications, in metric and English
measurements. Peak measurements are One Minute Rating.
Table 1–6. Spindle Drive System Specifications, Metric
Table 1–7. Spindle Drive System Specifications, English
Machine Max RPM Motor Power Spindle Torque
Cont. Peak Cont. @
Base RPM Peak @ Base RPM
VM5 8000 3.7 kW 7.5 kW 24.4 Nm @1450 48.8 Nm @ 1450
VM10 10000 7.5 kW 11.0 kW 49.1 Nm @ 1450 73.6 Nm @ 1450
VM10G 20000 6.0 kW 8.0 kW 2.4 Nm @ 20000 3.0 Nm @ 20000
30000 6.0 kW 7.5 kW 2.7 Nm @20000 3.4 Nm @ 20000
VM10P 12000 3.7 kW 7.5 kW 23.7 Nm @ 1500 47.5 Nm @ 1500
VM10U 10000 5.5 kW 8.9 kW 35.3 Nm @ 1500 56.9 Nm @ 1500
VM20 10000 11.0 kW 15.0 kW 74.0 Nm @ 1450 102.0 Nm @ 1450
VM30 10000 11.0 kW 15.0 kW 74.0 Nm @ 1450 102.0 Nm @ 1450
Machine Max RPM Motor Power Spindle Torque
Cont. Peak Cont. @
Base RPM Peak @ Base RPM
VM5 8000 5.0 hp 10.0 hp 18.0 ft-lb @ 1450 36.0 ft-lb @ 1450
VM10 10000 10.0 hp 15.0 hp 36.0 ft-lb @ 1450 54.0 ft-lb @ 1450
VM10G 20000 8.0 hp 10.0 hp 1.75 ft-lb @ 20000 2.2 ft-lb @ 20000
30000 8.0 hp 10.0 hp 1.75 ft-lb @ 20000 2.2 ft-lb @ 20000
VM10P 12000 5.0 hp 10.0 hp 17.5 ft-lb @ 1500 35.0 ft-lb @1500
VM10U 10000 7.4 hp 12.0 hp 26.0 ft-lb @ 1500 42.0 ft-lb @ 1500
VM20 10000 15.0 hp 20.0 hp 54.0 ft-lb @ 1450 75.0 ft-lb @ 1450
VM30 10000 15.0 hp 20.0 hp 54.0 ft-lb @ 1450 75.0 ft-lb @ 1450

VM Series Maintenance and Safety Manual 704-0212-209 Machine Components 1- 9
VM10G Spindle
The VM10G is equipped with a motorized spindle that uses a spindle oil chiller to maintain
the temperature of the spindle during machining operations. The motorized spindle on
the VM10G machine rotates in a clockwise direction (while looking down on the spindle
from above).
VM10G Tool Holder
To ensure that the spindle operates correctly, the tool holder used in the VM1G ATC must
be properly balanced.
Table 1–8. Required Tool Holder Balance for VM10G Machine
The status of the tool holder is displayed in the Machine Diagnostics screen and is either
Tool Clamp, Tool Unclamp, or Clamp No Tool.
•Tool Clamp—the tool is securely inserted in the tool holder and the spindle
will operate.
•Tool Unclamp—there is no tool in the spindle. The spindle will only operate
under Tool Unclamp status during a tool change. A tool does not have to be in
the spindle during machine warm-up; however, the maximum speed at which
the spindle can run without a tool is 5000 RPM.
•Clamp No Tool—the tool is not properly inserted in the spindle. The spindle
will not operate under Clamp No Tool status during Manual Spindle On, Auto,
or Manual machine modes.
Because the spindle only rotates in a clockwise direction, do not use
tap operations or counter-clockwise spindle direction for programs
that will be run on a VM10G machining center.
Specification 20,000 RPM Spindle 30,000 RPM Spindle
Balance for Tool Holder 2.5G @ 30,000 RPM 2.5G @ 30,000 RPM
Failure to meet spindle warm-up, spindle run-in, or tool holder
balance requirements may affect machine warranty, and may cause
premature spindle failure, excessive spindle vibration, surface finish
irregularities, and other performance problems.
A Clamp No Tool status error message indicates that the tool is not
fully inserted in the tool holder and may fly out of the holder during
machine operation.

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These are the recommended settings for tool holder specifications that will provide
optimal operation of a VM10G machine. Only a Hurco-certified Service Engineer can
adjust tool holder specification settings.
Table 1–9. Recommended Tool Holder Specifications for VM10G
AC Spindle Drive Unit
The spindle drive unit contains closed-loop control and controls the spindle motor using
an encoder. A microprocessor governs the closed-loop control, including monitoring.
The VM10G employs an open-loop control system that contains an Agree Signal for
spindle speed monitoring.
The following messages are output at terminals via relay contacts:
•Ready/Fault
• Main Spindle Messages
• Heat Sink Temperature Monitoring
• Motor Over-temperature
•OrientComplete
Electronic Spindle Orientation
The standard spindle on a machining center uses electronic spindle orientation. The
spindle is stopped at a fixed position through signals sent from an electronic encoder
assembly attached to the top of the spindle motor shaft.
The VM10G machine does not use electronic spindle orientation.
Proximity Sensor Spindle Orientation
Hurco machining centers with the Coolant-thru Spindle (CTS) option use proximity sensor
spindle orientation. This method of orientation uses a magnetic or proximity switch
mounted on the spindle, and either a screw on the collar of the spindle shaft, or a slot on
the spindle shaft as its target.
Specification Recommended Setting
Draw Bar Stroke 4.5 mm 0.18 in
Maximum Clamping Force 3.5 kN 787 lb
Air Seal Pressure 33 psi (at 2.5 bar)